Cheapest return flights from Seoul to Singapore in September from $380

AirHint found the following cheapest return flights from Seoul (GMP) to Singapore (SIN) in September 2026 (see full year).

Return flights

12 Sep - 16 Sep Jeju Air
02 Sep - 09 Sep Jeju Air
14 Sep - 18 Sep Jeju Air
10 Sep - 15 Sep Jeju Air
05 Sep - 09 Sep Jeju Air
09 Sep - 14 Sep Jeju Air
04 Sep - 09 Sep Jeju Air
09 Sep - 11 Sep Jeju Air
10 Sep - 14 Sep Jeju Air
12 Sep - 13 Sep Jeju Air
28 Sep - 02 Oct Air China
25 Sep - 08 Oct EVA Air
24 Sep - 03 Oct Air China

Also check the deals for one-way flights from Seoul to Singapore in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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